i bought the c2d e8400 chip and the temp sensors were bad. so i am going to RMA it. the sales rep i spoke to says i can order the same chip and they will just refund the original money back to my cc. she also told me if i wanted to i could buy a more expensive cpu and me pay the difference. should i just get the e8400 or go ahead with a quad(which one?). i do a few things on my rig but it's main focus is world of warcraft. what do you guys think?